Osteochondral Lesions: Microfracture vs Reconstruction
Mechanism of Injury

Osteochondral Microfracture
- Osteochondral lesions can be treated by Microfracture or by Allograft Reconstruction for larger lesions
- Occur as a result of ankle sprains and fractures
- Ankle inversion and dorsiflexion during axial load creates shearing of lateral talar dome and lateral OLT
- Ankle inversion, external rotation, and plantarflexion during axial load creates shearing of medial talar dome and medial OLT

Allograft Reconstruction of OCL
Requires live allograft donor tissue and a medial malleolar osteotomy of the ankle
Microfracture
VS
Advanced Reconstruction

Osteochondral lesion (OLT) Micro Fracture vs Reconstruction
Post Operative Instructions
Cast:
- You will have a plaster cast on your ankle and foot for 2 weeks following surgery
- An aircast will be applied at 2 weeks
- If you have a MICROFRACTURE you will begin WB at 2 weeks
- At 6-8 weeks, you will begin walking on the aircast if you have a RECONSTRUCTION and at 12 weeks the aircast will be removed
Wound:
- The surgical incision has been closed with sutures
- Do not get the cast or wound wet for the first two weeks. When showering place a bag over the cast and secure with tape to your leg to avoid the cast and wound getting wet
- Stitches will be removed at your 2 week appointment
- After the stitches are removed, you may begin to shower after 2-3 days
- Do not immerse the foot in water (bath, hot tub, pool) for 4 weeks
- Do not apply any lotions or creams on the wound for 6 weeks
Weight Bearing:
- You will be non weight bearing for 2 weeks with a MICROFRACTURE
- You will be non weight bearing for the first 6 weeks while in an aircast following a RECONSTRUCTION
- You will use a mobility device to offload your foot (crutches, walker, stirrup cast)
- After 6-8 weeks you may begin fully walking on the foot with a RECONSTRUCTION
Medications:
- You will be given a prescription for pain medication
- Pain medication should be used regularly for the first 24-48 hours, when required for the first 1 to 2 weeks, followed by Regular ibuprofen
- Aspirin may be prescribed as a blood thinner
Driving:
- For right foot surgery you are not permitted to drive until you have completely weaned off the aircast
- For left foot surgery, please contact your insurance company to see if you are permitted to drive
- Driving is not permitted while on narcotics
Work:
- Two weeks off work is recommended for initial recovery
- If you can be transported to work and you have a sedentary occupation you may return to work when you are able and are off narcotics
- From 2-8 weeks sedentary duties is recommended
- By 12 weeks you can gradually return to full duties
- If your job is physically demanding, return to full duties is usually possible around 12 weeks post operatively
Follow Up:
- You will have your first appointment 2 weeks after surgery in the Fracture Clinic
- Your next appointments will be at 6 weeks, 3 months then 6 months post operatively
Recovery:
- It is normal to experience mild to moderate pain, numbness, or tingling for the first 2 weeks following surgery
- You will get back to most of your activities by 6-12 months
- Swelling often remains for 6-12 months
- You are expected to experience a FULL recovery (no pain, no swelling, ability to walk, etc.) in 9-12 months
Physiotherapy:
- Six weeks after surgery you will be referred for physiotherapy (Physiotherapy protocol)